Embattled Wisconsin Judge Hannah Dugan, who was convicted of obstruction last month for helping an immigrant evade federal officers, has sent her resignation letter to the governor.

The letter was sent Saturday. Republicans had been making plans to impeach her ever since her Dec. 19 conviction. A spokesperson for Gov. Tony Evers, a Democrat, said his office received Dugan’s letter, and he would work to fill the vacancy without delay.

Dugan wrote that over the past decade she handled thousands of cases with “a commitment to treat all persons with dignity and respect, to act justly, deliberately and consistently, and to maintain a courtroom with the decorum and safety the public deserves.”

But she said the case against her is too big of a distraction.

“As you know, I am the subject of unprecedented federal legal proceedings, which are far from concluded but which present immense and complex challenges that threaten the independence of our judiciary. I am pursuing this fight for myself and for our independent judiciary,” Dugan said in her letter.

Last April, federal prosecutors accused Dugan of distracting federal officers trying to arrest a Mexican immigrant outside her courtroom and leading the man out through a private door. A federal jury convicted her of felony obstruction.

The case against Dugan was highlighted by President Donald Trump as he pressed ahead with his sweeping immigration crackdown. Democrats insisted the administration was trying to make an example of Dugan to blunt judicial opposition to the operation.

Republican Wisconsin Assembly Speaker Robin Vos praised Dugan’s decision.

“I’m glad Dugan did the right thing by resigning and followed the clear direction from the Wisconsin Constitution,” Vos said.

Democrat Ann Jacobs, who is chair of the Wisconsin Elections Commission board, said she agreed with Dugan that Milwaukee should have a permanent judge in place while this fight plays out.

“Despite her situation, she is ever the champion of justice, wanting to remove the judiciary from a political battle over her fate. I’m sure this is terribly hard for her but she is true to her faith and her principles,” Jacobs said in a post on X.

On April 18, immigration officers went to the Milwaukee County courthouse after learning 31-year-old Eduardo Flores-Ruiz had reentered the country illegally and was scheduled to appear before Dugan for a hearing in a state battery case.

Dugan confronted agents outside her courtroom and directed them to the office of her boss, Milwaukee County Chief Judge Carl Ashley, because she told them their administrative warrant wasn’t sufficient grounds to arrest Flores-Ruiz.

After the agents left, she led Flores-Ruiz and his attorney out a private jury door. Agents spotted Flores-Ruiz in the corridor, followed him outside and arrested him after a foot chase. The U.S. Department of Homeland Security announced in November he had been deported.